in reply to Finding if email addresses exist?

Check out Email::Valid. It will actually check to see if the email address is well formed and if the domain exists (among many other features). The docs do mention that there is no way of determining whether an email address is "deliverable" without actually attempting to deliver a message.

Hope this helps.

author => jeyroz

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Re^2: Finding if email addresses exist?
by Anonymous Monk on Oct 19, 2012 at 14:55 UTC
    You can try this site . Is very good and very quick with Bulk email verification system and free verification system! Supports and api keys for registration forms like forums, newsletters. I have put there 80.000 emails and all were done!